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The present work describes the experimental evaluation of an innovative gas sensor array for automotive cabin air quality applications. This integrated array presents as a main innovation aspect the simultaneous outputs, from a single chip packaged onto TO-12 socket, of eight different signals coming from a WO3 thin film structure heated in a linear temperature gradient mode, allowing an overall evaluation of gas sensing properties of metal oxide materials in a 100 °C-wide window, typically from 300 to 400 °C. Experimental results will be explained by means of PCA (principal component analysis) compounds identification for three different target gases of CO, NO2 and SO2 at different concentrations.
Publication date: 
25 Sep 2008

L Francioso, A Forleo, AM Taurino, P Siciliano, L Lorenzelli, V Guarnieri, A Adami, G Agnusdei

Biblio References: 
Volume: 134 Issue: 2 Pages: 660-665
Sensors and Actuators B: Chemical